Its not really a myth, bigger blokes are not necessarily slow but in general they are slower than smaller blokes.
Sprinters carry a decent amount of muscle but the optimum weight seems to be in the 80-90kg range. Usain bolt is 94 kg according to wiki but he is like 6 foot 6. You don't see any 115kg world class sprinters.
Same with UFC the big blokes often look like you are watching it in slow motion compared to the lighter weights..
Rugby, fastest blokes usually in the 90kg range.
With adding muscle there is a point where it starts to slow you down. In saying that most people if lean will never get to that point.
The myth is more lifting weights makes you slow.
Sprinters carry a decent amount of muscle but the optimum weight seems to be in the 80-90kg range. Usain bolt is 94 kg according to wiki but he is like 6 foot 6. You don't see any 115kg world class sprinters.
Same with UFC the big blokes often look like you are watching it in slow motion compared to the lighter weights..
Rugby, fastest blokes usually in the 90kg range.
With adding muscle there is a point where it starts to slow you down. In saying that most people if lean will never get to that point.
The myth is more lifting weights makes you slow.